I've been playing around with the new Programmer Q&A site, Stack Overflow. Overall it's a great site, and built with a vision that most web projects lack in the era of mis-applied agile development. You can checkout my profile page or it's corresponding

One of the neat things you can do with the Rhino Javascript shell is take some piece of text manipulation or validation that's been written for the web and use it in any shell script, or any editor that supports calling out to shell